Model Two & Model Two Lite - Operation Manual
41
The analog bar graphs for Audio and Video continue to indicate the LIVE level in all modes,
while the wavy line at the top of each bar indicates the maximum level of the Audio and Video
signals.
Single Channel Spectrum
The Model Two can scan the spectrum of the designated channel automatically. This function is
particularly useful for CATV measurements. To scan the channel spectrum, press
LEVEL
again.
The Model Two displays the spectrum screen and scans the channel for data, which it then
graphs on the screen.
The Center Frequency and Channel Number are displayed, along with the Marker Frequency
and Level. Use the
UP
and
DOWN
arrow keys
to move the Marker Frequency to any position
in the channel spectrum.
A
Δ
Δ
Δ
Δ
Δ
Marker
function can also be used to check the distance (in MHz) and amplitude difference
between any 2 points in the displayed spectrum. First, use the
UP
and
DOWN
arrow keys
to
move the marker to a reference position, then press
F2
(
Δ
MKR). The
UP
and
DOWN
arrow
keys now move the second marker from the reference position, and the
Δ
Frequency and
Δ
Level are displayed. Press
F2
(MARK) to return to the normal single-marker spectrum display.
Use F1 (AUTO) to automatically set a scale and reference for the displayed spectrum graph.
You may also set the Scale and Reference manually by pressing
F3
(DOWN) and using
F2
and
F3
for Scale and Reference as described for the preceding Level display mode.
